Skywatching
Cloud Types
Forecasing
Climate Change
100

The bending of light

Refraction

100
Bottom layer of the atmosphere, where all weather occurs

Troposphere

100

What are "cooperative observers"?

Volunteers who send daily reports to the NWS to help them validate their forecasts and adjust models.

100

What is the greenhouse effect?

Gases like CO2 and CH4 trap infrared head radiating off the Earth and prevent some of it from escaping into space.

200

Why do colors become separated in a rainbow?

Different wavelengths of light are refracted at different angles when passing through water.

200

Means "heaped" in Latin. Puffy, cotton ball- shaped clouds.

Cumulus

200

What is one way the NWS collects data on high altitude wind conditions?

Radiosondes and AMDR (sharing data from airplanes)

200
Long, winding currents that transport heat from the equator around the world and return cold water from the poles
Ocean conveyor belt (thermohaline circulation)
300

Why do clouds appear white in the daytime?

Because they're made of larger particles that reflect all wavelengths of light

300

High altitude, wispy clouds that can come before a warm front or indicate fair weather

Cirrus

300

Name one of the three kinds of weather satellites that government has

Geostationary (GOES), polar, deep space

300
What is one reason AMOC is slowing down?

Melting ice sheets makes cold water less salty, so it doesn't sink as easily.

Hotter water is less dense, so it doesn't sink.

400

What is Rayleigh scattering?

Shorter wavelengths of light (blue/purple) are deflected more easily by smaller particles like gas.

400

Describe a nibostratus cloud

Rain-producing (nibo) and layered (stratus). Large, dark cloud (because it can bring rain) that can cover the whole sky.

400

What is the difference between the GFS and the HRRR forecast models?

HRRR is the best for immediate conditions, issuing alerts and warning. Highest resolution.

GFS is lowest resolution, but best for longer-term forecasts

400

What is one thing that could happen if AMOC (including the Gulf Stream) were to shut down?

Ice age for Europe and N America, disrupted monsoon season in W Africa and Asia

500

Why are clouds orange at sunrise/sunset?

Blue/purple light is scattered more than orange/red in our atmosphere and at sunrise/sunset the light has to travel a longer distance through the atmosphere.

500

What name would we give a cloud that is mid-altitude and looks like puffy, white heaps.

Altocumulus

"alto"- mid-altitude

"cumulus"- heaped

500

Why does Heisenberg's uncertainty principle relate to creating weather forecasts?

Exact initial conditions can not be known, so long-term forecasting will always be limited.

500
Give one example of a climate tipping point/ amplifying feedback. Explain or diagram what makes it a tipping point.
melting permafrost, methane deposits, AMOC shut-down, albedo from ice sheets

positive: rise of clean energy

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